Solve Using a System of Three Linear Equations

question 17

Multiple Choice

Solve using a system of three linear equations.
-A deli sells three sizes of roast beef sandwiches: the small roast beef sandwich contains 4 ounces of meat and sells for $3.00; the regular roast beef sandwich contains 7 ounces of meat and sells for $3.50; and the large
Roast beef sandwich contains 9 ounces of meat and sells for $4.00. A customer requests a selection of each size
For a reception. She and the manager agree on a combination of 54 sandwiches made from 20 pounds 2 ounces
Of roast beef for a total cost of $181. How many of each size sandwich will be in this combination? (Note: 1
Pound = 16 ounces)

• A)20 small sandwiches, 18 medium sandwiches, 16 large sandwiches.
• B)22 small sandwiches, 28 medium sandwiches, 4 large sandwiches.
• C)24 small sandwiches, 22 medium sandwiches, 8 large sandwiches.
• D)26 small sandwiches, 16 medium sandwiches, 12 large sandwiches.

Recognize the importance of sensory and motor development milestones in early childhood.

Comprehend the role of experience-dependent and experience-expectant processes in brain development.

Identify factors influencing physical and cognitive development in infants.

Explain the significance of vaccinations in early childhood.

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Definitions:

Marginal Product

The change in total output that results from the employment of one additional unit of a resource.

Marginal Cost

Represents the change in total production costs resulting from making one additional unit of a product or service.

Economies of Scale

Advantages in cost that businesses gain from expanding their production scale, leading to a decrease in the average cost per unit produced as the operation size grows.

Average Farm

Refers to a farm with characteristics (size, income, production level) that represent the mean or typical values when compared to the broader agricultural landscape.